| 05/10/26 | 07:00:06 | 5 Oct 2026 | | New Water Sector Contract Wins | RNS |
| 02/10/26 | 07:00:03 | 2 Oct 2026 | | Grant of Options | RNS |
| 01/10/26 | 09:30:01 | 1 Oct 2026 | | CFO Succession | RNS |
| 17/08/26 | 07:00:09 | 17 Aug 2026 | | Hercules Academy Growth Update | RNS |
| 10/08/26 | 07:00:08 | 10 Aug 2026 | | Successful Implementation of Pay & Bill Platform | RNS |
| 03/08/26 | 07:00:09 | 3 Aug 2026 | | Launch of Power & Energy Services Division | RNS |
| 31/07/26 | 10:40:50 | 31 Jul 2026 | | Director Dealing | RNS |
| 28/07/26 | 12:15:43 | 28 Jul 2026 | | Director Dealing | RNS |
| 24/07/26 | 11:44:55 | 24 Jul 2026 | | Director Dealing | RNS |
| 24/07/26 | 07:00:05 | 24 Jul 2026 | | Change of Auditor | RNS |
| 23/07/26 | 11:45:00 | 23 Jul 2026 | | Director Dealing | RNS |
| 22/07/26 | 10:26:24 | 22 Jul 2026 | | Director Dealing | RNS |
| 20/07/26 | 12:17:37 | 20 Jul 2026 | | Director Dealing | RNS |
| 16/07/26 | 07:00:03 | 16 Jul 2026 | | Advantage NRG secures £3.4m of contracted works | RNS |
| 14/07/26 | 07:00:02 | 14 Jul 2026 | | Civil Projects Division Secures £6.1m of Contracts | RNS |
| 10/07/26 | 11:18:54 | 10 Jul 2026 | | Director Dealing | RNS |
| 08/07/26 | 09:23:23 | 8 Jul 2026 | | Director Dealing | RNS |
| 03/07/26 | 11:13:23 | 3 Jul 2026 | | Director Dealing | RNS |
| 01/07/26 | 13:51:30 | 1 Jul 2026 | | PCA Dealing | RNS |
| 26/06/26 | 07:00:07 | 26 Jun 2026 | | Increase in Working Capital Facility & Term Loans | RNS |
| 23/06/26 | 15:30:00 | 23 Jun 2026 | | Result of AGM | RNS |
| 23/06/26 | 07:00:02 | 23 Jun 2026 | | AGM Statement | RNS |
| 17/06/26 | 07:00:06 | 17 Jun 2026 | | Hercules Launches Landmark Skills Whitepaper | RNS |
| 05/06/26 | 10:01:25 | 5 Jun 2026 | | Interim Results | RNS |
| 02/06/26 | 16:40:06 | 2 Jun 2026 | | Notice of Annual General Meeting | RNS |
| 22/05/26 | 07:00:03 | 22 May 2026 | | Final Results and H1 Trading Update | RNS |
| 23/03/26 | 12:00:00 | 23 Mar 2026 | | Delay in Final Results and Temporary Suspension | RNS |
| 02/03/26 | 07:00:15 | 2 Mar 2026 | | Advantage NRG secures £6.7m of contracted works | RNS |
| 10/02/26 | 08:22:32 | 10 Feb 2026 | | Update on Final Results | RNS |
| 02/02/26 | 07:00:03 | 2 Feb 2026 | | Advantage NRG secures £6.5m of contracted works | RNS |
| 19/01/26 | 07:01:01 | 19 Jan 2026 | | Hercules added to Preferred Supplier List | RNS |
| 19/01/26 | 07:00:04 | 19 Jan 2026 | | Update on release of Final Results | RNS |
| 05/01/26 | 12:07:41 | 5 Jan 2026 | | Director / PDMR Shareholding | RNS |
| 08/12/25 | 07:00:03 | 8 Dec 2025 | | New Major Contract Awards in the Water Sector | RNS |
| 03/12/25 | 07:00:11 | 3 Dec 2025 | | Strategic Expansion into Scotland | RNS |
| 27/11/25 | 16:07:29 | 27 Nov 2025 | | Holding(s) in Company | RNS |
| 20/11/25 | 07:00:15 | 20 Nov 2025 | | Investor Presentation | RNS |
| 06/11/25 | 07:00:14 | 6 Nov 2025 | | Hercules Academy Update | RNS |
| 05/11/25 | 07:00:11 | 5 Nov 2025 | | Director Dealing | RNS |
| 31/10/25 | 07:00:03 | 31 Oct 2025 | | Total Voting Rights | RNS |
| 15/10/25 | 07:00:06 | 15 Oct 2025 | | Acquisition of Lyons Power Services Ltd | RNS |
| 02/10/25 | 07:00:04 | 2 Oct 2025 | | Trading Update | RNS |
| 17/09/25 | 07:00:10 | 17 Sept 2025 | | Major Contract Awards in the Water Sector | RNS |
| 01/07/25 | 07:00:12 | 1 Jul 2025 | | Investor Call | RNS |
| 27/06/25 | 07:00:08 | 27 Jun 2025 | | Acquisition of Advantage NRG Ltd | RNS |
| 17/06/25 | 07:00:08 | 17 Jun 2025 | | Interim Results | RNS |
| 12/06/25 | 07:00:08 | 12 Jun 2025 | | Acquisition of Quality Transport Training | RNS |
| 11/06/25 | 07:00:11 | 11 Jun 2025 | | Notice of Results & Investor Presentation | RNS |
| 20/05/25 | 07:00:12 | 20 May 2025 | | Change of Name | RNS |
| 07/05/25 | 07:00:08 | 7 May 2025 | | Trading Update | RNS |
